/*
 * Copyright (c) 2024 Shenzhen Kaihong Digital Industry Development Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import fs from '@ohos.file.fs';
import { Buffer, BufferClass } from './wrapper/buffer'
import { proc } from './wrapper/process'
let defaultSSLRootsFilePath = proc.pro.getEnvironmentVar("GRPC_DEFAULT_SSL_ROOTS_FILE_PATH");
let sslCipherSuites = proc.pro.getEnvironmentVar("GRPC_SSL_CIPHER_SUITES");

export const CIPHER_SUITES: string | undefined = sslCipherSuites;

const DEFAULT_ROOTS_FILE_PATH = defaultSSLRootsFilePath;

let defaultRootsData: Buffer ;

export function getDefaultRootsData(): Buffer  {
  if (DEFAULT_ROOTS_FILE_PATH) {
    if (defaultRootsData === null) {
      let file = fs.openSync(DEFAULT_ROOTS_FILE_PATH, fs.OpenMode.READ_WRITE);
      fs.readSync(file.fd, defaultRootsData.buffer);
    }
    return defaultRootsData;
  }
  return null;
}
